N-(Arylcyclopropyl)acetamides and N-(arylvinyl)acetamides or methyl ureas have been prepared as constrained analogues of melatonin. The affinity of these new compounds for chicken brain melatonin receptors and recombinant human MT1 and MT2 receptors was evaluated using 2-[125I]-iodomelatonin as radioligand. Strict ethylenic or cyclopropyl analogues of the commercialized agonist agomelatine (Valdoxan®)
A variety of N-acetyl-o-aryl-1,2-didehydroethylamines were synthesized by direct reduction-acetylation of beta-aryl-nitroolefins and assayed as HIV-1 non-nucleoside reverse transcriptase inhibitors (NNRTIs) for the first time. Compound 7a exhibited a TI value of > 13.2 with CC50 value of > 0.787 mM in C8166 cells. This structure-activity relationship (SAR) study provided a new lead for design and discovery of more potent and selective analogues act as NNRTIs. (c) 2007 Elsevier Ltd. All rights reserved.
Brettle, Roger; Mosedale, Alan J., Journal of the Chemical Society. Perkin transactions I, 1988, p. 2185 - 2196